THE VICTORIAN NATURALIST.^VoL XXX. 



Plate hi. 



June, 191 3. 



Excavation in Plug of Volcanic Rock (Monchiquite), Balwyn. 



Site of Volcanic Plug at Whitethorn-road, Balwyn. 



(Figure indicates edge of excavation). 



EXCURSION TO MONT ALBERT AND BALWYN. 



